/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:31:31,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:31:31,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:31:31,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 18:31:31,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:31:31,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:31:31,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:31:31,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:31:31,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:31:31,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:31:31,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:31:31,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:31:31,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:31:31,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:31:31,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:31:31,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:31:31,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:31:31,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:31:31,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:31:31,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:31:31,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:31:31,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:31:31,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:31:31,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:31:31,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:31:31,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:31:31,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:31:31,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:31:31,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:31:31,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:31:31,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:31:31,653 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:31:31,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:31:31,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:31:31,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:31:31,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:31:31,654 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:31:31,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:31:31,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:31:31,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:31,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:31:31,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:31:31,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:31:31,656 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:31:31,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:31:31,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:31:31,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:31:31,952 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:31:31,952 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:31:31,953 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-08-22 18:31:32,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105125e08/a8bb6ddc4db7458d96b5d4459d0bce7a/FLAG1e79ce5ae [2020-08-22 18:31:32,443 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:31:32,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-08-22 18:31:32,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105125e08/a8bb6ddc4db7458d96b5d4459d0bce7a/FLAG1e79ce5ae [2020-08-22 18:31:32,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105125e08/a8bb6ddc4db7458d96b5d4459d0bce7a [2020-08-22 18:31:32,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:31:32,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:31:32,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:32,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:31:32,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:31:32,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:32" (1/1) ... [2020-08-22 18:31:32,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67208b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:32, skipping insertion in model container [2020-08-22 18:31:32,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:32" (1/1) ... [2020-08-22 18:31:32,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:31:32,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:31:33,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:33,131 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:31:33,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:33,299 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:31:33,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33 WrapperNode [2020-08-22 18:31:33,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:33,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:31:33,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:31:33,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:31:33,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... [2020-08-22 18:31:33,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... [2020-08-22 18:31:33,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... [2020-08-22 18:31:33,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... [2020-08-22 18:31:33,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... [2020-08-22 18:31:33,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... [2020-08-22 18:31:33,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... [2020-08-22 18:31:33,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:31:33,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:31:33,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:31:33,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:31:33,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:31:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:31:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 18:31:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-22 18:31:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-22 18:31:33,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:31:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:31:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 18:31:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 18:31:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-22 18:31:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:31:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:31:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:31:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:31:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:31:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:31:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-22 18:31:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:31:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:31:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-22 18:31:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:31:34,106 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:31:34,107 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-22 18:31:34,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:34 BoogieIcfgContainer [2020-08-22 18:31:34,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:31:34,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:31:34,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:31:34,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:31:34,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:31:32" (1/3) ... [2020-08-22 18:31:34,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37073e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:34, skipping insertion in model container [2020-08-22 18:31:34,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:33" (2/3) ... [2020-08-22 18:31:34,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37073e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:34, skipping insertion in model container [2020-08-22 18:31:34,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:34" (3/3) ... [2020-08-22 18:31:34,123 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-08-22 18:31:34,133 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:31:34,142 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:31:34,156 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:31:34,178 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:31:34,178 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:31:34,179 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:31:34,179 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:31:34,179 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:31:34,179 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:31:34,180 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:31:34,180 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:31:34,203 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states. [2020-08-22 18:31:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 18:31:34,217 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:34,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:31:34,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:34,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:34,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1608489446, now seen corresponding path program 1 times [2020-08-22 18:31:34,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:34,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760805738] [2020-08-22 18:31:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:34,304 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:34,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:34,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 18:31:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:34,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760805738] [2020-08-22 18:31:34,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:34,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:31:34,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032918979] [2020-08-22 18:31:34,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:31:34,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:34,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:31:34,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:31:34,529 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 4 states. [2020-08-22 18:31:35,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:35,078 INFO L93 Difference]: Finished difference Result 415 states and 505 transitions. [2020-08-22 18:31:35,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:31:35,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-08-22 18:31:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:35,093 INFO L225 Difference]: With dead ends: 415 [2020-08-22 18:31:35,093 INFO L226 Difference]: Without dead ends: 213 [2020-08-22 18:31:35,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:31:35,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-08-22 18:31:35,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-08-22 18:31:35,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-08-22 18:31:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2020-08-22 18:31:35,160 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 46 [2020-08-22 18:31:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:35,161 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2020-08-22 18:31:35,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:31:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2020-08-22 18:31:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-08-22 18:31:35,165 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:35,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:31:35,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:31:35,171 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:35,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:35,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1262573606, now seen corresponding path program 1 times [2020-08-22 18:31:35,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:35,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755930706] [2020-08-22 18:31:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:35,175 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:35,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:35,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:35,365 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:31:35,366 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:31:35,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:31:35,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:31:35 BoogieIcfgContainer [2020-08-22 18:31:35,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:31:35,391 INFO L168 Benchmark]: Toolchain (without parser) took 2599.52 ms. Allocated memory was 146.3 MB in the beginning and 235.9 MB in the end (delta: 89.7 MB). Free memory was 103.4 MB in the beginning and 136.3 MB in the end (delta: -32.9 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:35,392 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:31:35,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.46 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 103.0 MB in the beginning and 178.2 MB in the end (delta: -75.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:35,394 INFO L168 Benchmark]: Boogie Preprocessor took 59.38 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 175.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:35,395 INFO L168 Benchmark]: RCFGBuilder took 753.17 ms. Allocated memory is still 202.9 MB. Free memory was 175.5 MB in the beginning and 127.5 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:35,396 INFO L168 Benchmark]: TraceAbstraction took 1273.22 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 126.8 MB in the beginning and 136.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:35,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 508.46 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 103.0 MB in the beginning and 178.2 MB in the end (delta: -75.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.38 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 175.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 753.17 ms. Allocated memory is still 202.9 MB. Free memory was 175.5 MB in the beginning and 127.5 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1273.22 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 126.8 MB in the beginning and 136.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 191]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L182] double x = 0.0; [L183] double y = __VERIFIER_nondet_double(); [L185] COND TRUE y < 0.0 || y > 0.0 [L187] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L187] RET, EXPR fmod_double(x, y) [L187] double res = fmod_double(x, y); [L190] EXPR res == 0.0 && __signbit_double(res) == 0 [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L191] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 45 SDslu, 184 SDs, 0 SdLazy, 266 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...